public inbox for crossgcc@sourceware.org
 help / color / mirror / Atom feed
* [PATCH] gcc: skip core pass 1 when it is unnecessary
@ 2014-02-26 16:00 Trevor Woerner
  0 siblings, 0 replies; 6+ messages in thread
From: Trevor Woerner @ 2014-02-26 16:00 UTC (permalink / raw)
  To: Yann E. MORIN; +Cc: crossgcc, patches

# HG changeset patch
# User Trevor Woerner <trevor.woerner@linaro.org>
# Date 1393430367 18000
#      Wed Feb 26 10:59:27 2014 -0500
# Node ID 76f3ac3697f23244c6246e87081ba452230d35f1
# Parent  c727adf1b7bd2c1e891db512871dbe7b26797fa6
gcc: skip core pass 1 when it is unnecessary

If neither Linux headers nor libc start files are required, skip gcc's core
pass 1 since the build will simply move from pass 1 to pass 2 without doing
any work in between.

diff -r c727adf1b7bd -r 76f3ac3697f2 scripts/build/cc/gcc.sh
--- a/scripts/build/cc/gcc.sh	Tue Feb 25 13:34:48 2014 -0500
+++ b/scripts/build/cc/gcc.sh	Wed Feb 26 10:59:27 2014 -0500
@@ -88,6 +88,14 @@
         return 0
     fi
 
+    # skip gcc pass 1 if there are no Linux kernel headers
+    # nor libc start files to build/process
+    if [ "${CT_LIBC}" = "none" -o "${CT_LIBC}" = "newlib" ]; then
+        if [ "${CT_BARE_METAL}" = "y" ]; then
+            return 0
+        fi
+    fi
+
     core_opts+=( "mode=static" )
     core_opts+=( "host=${CT_BUILD}" )
     core_opts+=( "complibs=${CT_BUILDTOOLS_PREFIX_DIR}" )

--
For unsubscribe information see http://sourceware.org/lists.html#faq

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] gcc: skip core pass 1 when it is unnecessary
  2014-05-05 21:42 ` Yann E. MORIN
@ 2014-05-06  3:25   ` Trevor Woerner
  0 siblings, 0 replies; 6+ messages in thread
From: Trevor Woerner @ 2014-05-06  3:25 UTC (permalink / raw)
  To: Yann E. MORIN; +Cc: crossgcc, patches

Hi Yann, All,

On 05/05/14 17:42, Yann E. MORIN wrote:
> Trevor, All,
>
> On 2014-02-26 11:15 -0500, Trevor Woerner spake thusly:
>> # HG changeset patch
>> # User Trevor Woerner <trevor.woerner@linaro.org>
>> # Date 1393431218 18000
>> #      Wed Feb 26 11:13:38 2014 -0500
>> # Node ID e9f99d9bd902414c8e3f3c6fc36c0fc67f3a7593
>> # Parent  c727adf1b7bd2c1e891db512871dbe7b26797fa6
>> gcc: skip core pass 1 when it is unnecessary
> I've pushed a different set of changes that should do what you want,
> now:
>     cc: add options to differentiate the need for pass-1 and pass-2
>     cc/gcc: only build required core passes
>     libc/newlib: only requires core pass-2
>
> Thanks for the report! :-)

Thank you :-) I'll take a look shortly.

--
For unsubscribe information see http://sourceware.org/lists.html#faq

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] gcc: skip core pass 1 when it is unnecessary
  2014-02-26 16:15 Trevor Woerner
  2014-05-05 20:10 ` Yann E. MORIN
@ 2014-05-05 21:42 ` Yann E. MORIN
  2014-05-06  3:25   ` Trevor Woerner
  1 sibling, 1 reply; 6+ messages in thread
From: Yann E. MORIN @ 2014-05-05 21:42 UTC (permalink / raw)
  To: Trevor Woerner; +Cc: crossgcc, patches

Trevor, All,

On 2014-02-26 11:15 -0500, Trevor Woerner spake thusly:
> # HG changeset patch
> # User Trevor Woerner <trevor.woerner@linaro.org>
> # Date 1393431218 18000
> #      Wed Feb 26 11:13:38 2014 -0500
> # Node ID e9f99d9bd902414c8e3f3c6fc36c0fc67f3a7593
> # Parent  c727adf1b7bd2c1e891db512871dbe7b26797fa6
> gcc: skip core pass 1 when it is unnecessary
> 
> If neither the Linux headers nor the libc start files are required, skip gcc's
> core pass 1 since the build will simply move from pass 1 to pass 2 without
> doing any work in between.
> 
> Signed-off-by: Trevor Woerner <trevor.woerner@linaro.org>
> 
> diff -r c727adf1b7bd -r e9f99d9bd902 scripts/build/cc/gcc.sh
> --- a/scripts/build/cc/gcc.sh	Tue Feb 25 13:34:48 2014 -0500
> +++ b/scripts/build/cc/gcc.sh	Wed Feb 26 11:13:38 2014 -0500
> @@ -88,6 +88,14 @@
>          return 0
>      fi
>  
> +    # skip gcc pass 1 if there are no Linux kernel headers
> +    # nor libc start files to build/process
> +    if [ "${CT_LIBC}" = "none" -o "${CT_LIBC}" = "newlib" ]; then
> +        if [ "${CT_BARE_METAL}" = "y" ]; then
> +            return 0
> +        fi
> +    fi

I've pushed a different set of changes that should do what you want,
now:
    cc: add options to differentiate the need for pass-1 and pass-2
    cc/gcc: only build required core passes
    libc/newlib: only requires core pass-2

Thanks for the report! :-)

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

--
For unsubscribe information see http://sourceware.org/lists.html#faq

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] gcc: skip core pass 1 when it is unnecessary
  2014-05-05 20:10 ` Yann E. MORIN
@ 2014-05-05 20:59   ` Yann E. MORIN
  0 siblings, 0 replies; 6+ messages in thread
From: Yann E. MORIN @ 2014-05-05 20:59 UTC (permalink / raw)
  To: Trevor Woerner; +Cc: crossgcc, patches

Trevor, All,

On 2014-05-05 22:09 +0200, Yann E. MORIN spake thusly:
> On 2014-02-26 11:15 -0500, Trevor Woerner spake thusly:
> > # HG changeset patch
> > # User Trevor Woerner <trevor.woerner@linaro.org>
> > # Date 1393431218 18000
> > #      Wed Feb 26 11:13:38 2014 -0500
> > # Node ID e9f99d9bd902414c8e3f3c6fc36c0fc67f3a7593
> > # Parent  c727adf1b7bd2c1e891db512871dbe7b26797fa6
> > gcc: skip core pass 1 when it is unnecessary
> > 
> > If neither the Linux headers nor the libc start files are required, skip gcc's
> > core pass 1 since the build will simply move from pass 1 to pass 2 without
> > doing any work in between.
> > 
> > Signed-off-by: Trevor Woerner <trevor.woerner@linaro.org>
> > 
> > diff -r c727adf1b7bd -r e9f99d9bd902 scripts/build/cc/gcc.sh
> > --- a/scripts/build/cc/gcc.sh	Tue Feb 25 13:34:48 2014 -0500
> > +++ b/scripts/build/cc/gcc.sh	Wed Feb 26 11:13:38 2014 -0500
> > @@ -88,6 +88,14 @@
> >          return 0
> >      fi
> >  
> > +    # skip gcc pass 1 if there are no Linux kernel headers
> > +    # nor libc start files to build/process
> > +    if [ "${CT_LIBC}" = "none" -o "${CT_LIBC}" = "newlib" ]; then
> > +        if [ "${CT_BARE_METAL}" = "y" ]; then
> > +            return 0
> 
> There is already an escape-point a few lines above:
>     if [ "${CT_CC_CORE_PASSES_NEEDED}" != "y" ]; then
>         return 0
>     fi
> 
> Also, LIBC == none or LIBC == newlib is only possible for bare-metal to
> start with. So, this would be equivalent to not select CC_CORE_PASSES_NEEDED
> for newlib, right?

Ah, no, in fact. CC_CORE_PASSES_NEEDED just disables both passes, when
we only want to disable pass-1.

I'll see what we can do...

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

--
For unsubscribe information see http://sourceware.org/lists.html#faq

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] gcc: skip core pass 1 when it is unnecessary
  2014-02-26 16:15 Trevor Woerner
@ 2014-05-05 20:10 ` Yann E. MORIN
  2014-05-05 20:59   ` Yann E. MORIN
  2014-05-05 21:42 ` Yann E. MORIN
  1 sibling, 1 reply; 6+ messages in thread
From: Yann E. MORIN @ 2014-05-05 20:10 UTC (permalink / raw)
  To: Trevor Woerner; +Cc: crossgcc, patches

Trevor, All,

Sorry for the delay... :-(

On 2014-02-26 11:15 -0500, Trevor Woerner spake thusly:
> # HG changeset patch
> # User Trevor Woerner <trevor.woerner@linaro.org>
> # Date 1393431218 18000
> #      Wed Feb 26 11:13:38 2014 -0500
> # Node ID e9f99d9bd902414c8e3f3c6fc36c0fc67f3a7593
> # Parent  c727adf1b7bd2c1e891db512871dbe7b26797fa6
> gcc: skip core pass 1 when it is unnecessary
> 
> If neither the Linux headers nor the libc start files are required, skip gcc's
> core pass 1 since the build will simply move from pass 1 to pass 2 without
> doing any work in between.
> 
> Signed-off-by: Trevor Woerner <trevor.woerner@linaro.org>
> 
> diff -r c727adf1b7bd -r e9f99d9bd902 scripts/build/cc/gcc.sh
> --- a/scripts/build/cc/gcc.sh	Tue Feb 25 13:34:48 2014 -0500
> +++ b/scripts/build/cc/gcc.sh	Wed Feb 26 11:13:38 2014 -0500
> @@ -88,6 +88,14 @@
>          return 0
>      fi
>  
> +    # skip gcc pass 1 if there are no Linux kernel headers
> +    # nor libc start files to build/process
> +    if [ "${CT_LIBC}" = "none" -o "${CT_LIBC}" = "newlib" ]; then
> +        if [ "${CT_BARE_METAL}" = "y" ]; then
> +            return 0

There is already an escape-point a few lines above:
    if [ "${CT_CC_CORE_PASSES_NEEDED}" != "y" ]; then
        return 0
    fi

Also, LIBC == none or LIBC == newlib is only possible for bare-metal to
start with. So, this would be equivalent to not select CC_CORE_PASSES_NEEDED
for newlib, right?

Regards,
Yann E. MORIN.

> +        fi
> +    fi
> +
>      core_opts+=( "mode=static" )
>      core_opts+=( "host=${CT_BUILD}" )
>      core_opts+=( "complibs=${CT_BUILDTOOLS_PREFIX_DIR}" )

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

--
For unsubscribe information see http://sourceware.org/lists.html#faq

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [PATCH] gcc: skip core pass 1 when it is unnecessary
@ 2014-02-26 16:15 Trevor Woerner
  2014-05-05 20:10 ` Yann E. MORIN
  2014-05-05 21:42 ` Yann E. MORIN
  0 siblings, 2 replies; 6+ messages in thread
From: Trevor Woerner @ 2014-02-26 16:15 UTC (permalink / raw)
  To: Yann E. MORIN; +Cc: crossgcc, patches

# HG changeset patch
# User Trevor Woerner <trevor.woerner@linaro.org>
# Date 1393431218 18000
#      Wed Feb 26 11:13:38 2014 -0500
# Node ID e9f99d9bd902414c8e3f3c6fc36c0fc67f3a7593
# Parent  c727adf1b7bd2c1e891db512871dbe7b26797fa6
gcc: skip core pass 1 when it is unnecessary

If neither the Linux headers nor the libc start files are required, skip gcc's
core pass 1 since the build will simply move from pass 1 to pass 2 without
doing any work in between.

Signed-off-by: Trevor Woerner <trevor.woerner@linaro.org>

diff -r c727adf1b7bd -r e9f99d9bd902 scripts/build/cc/gcc.sh
--- a/scripts/build/cc/gcc.sh	Tue Feb 25 13:34:48 2014 -0500
+++ b/scripts/build/cc/gcc.sh	Wed Feb 26 11:13:38 2014 -0500
@@ -88,6 +88,14 @@
         return 0
     fi
 
+    # skip gcc pass 1 if there are no Linux kernel headers
+    # nor libc start files to build/process
+    if [ "${CT_LIBC}" = "none" -o "${CT_LIBC}" = "newlib" ]; then
+        if [ "${CT_BARE_METAL}" = "y" ]; then
+            return 0
+        fi
+    fi
+
     core_opts+=( "mode=static" )
     core_opts+=( "host=${CT_BUILD}" )
     core_opts+=( "complibs=${CT_BUILDTOOLS_PREFIX_DIR}" )

--
For unsubscribe information see http://sourceware.org/lists.html#faq

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2014-05-06  3:25 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-02-26 16:00 [PATCH] gcc: skip core pass 1 when it is unnecessary Trevor Woerner
2014-02-26 16:15 Trevor Woerner
2014-05-05 20:10 ` Yann E. MORIN
2014-05-05 20:59   ` Yann E. MORIN
2014-05-05 21:42 ` Yann E. MORIN
2014-05-06  3:25   ` Trevor Woerner

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).